While surveying with drones, images of the ground are extracted from multiple vantage points. Through processing these images, a photogrammetry software may then create orthomosaics and 3D models, from which it can measure accurate distance, and also surfaces and volumes of physical objects. Data outputs from the drone Images taken by the drone are usually saved on a memory (such as Sdcard), just like for just about any other camera. According to the technology utilized by the drone, the images are already geo-tagged or could be imported in a geo-tagging software, such as WingtraHub. In line with the size of the survey site, you probably have between a few hundred images and a few thousand, and each image contains geographical information (X, Y, Z). Importing right into a photogrammetry software After importing or uploading the geo-tagged images in a photogrammetry software such as for example Propeller, Bentley ContextCapture or Pix4D, images will be stitched together to generate 2D or 3D types of the surveyed site. https://aerial-lidar.co.uk/best-drone-surveyors/ can be quite a lengthy process depending on amount of images and the performance of your computer. Some photogrammetry software are desktop-based, thus requiring robust hardware. Other software is cloud-based, employing powerful servers rather than your neighborhood computer to process the data.
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